Results 21 to 30 of about 8,830 (171)

Sodium Silicate Cold-Bonded Chromite Pellets for the Ferrochromium Industry – Identifying a Suitable Process [PDF]

open access: yesMaterials Research, 2020
Chromite fines (defined as particles smaller than 6 mm) account for a significant fraction of mined South African chromite ore. These fines are pelletized to allow safe furnace smelting conditions.
S.P. du Preez, Z. Maree, J.P. Beukes
doaj   +1 more source

Effects of mechanical activation on the carbothermal reduction of chromite with metallurgical coke

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2010
The carbothermal reduction of mechanically activated chromite with metallurgical coke under an argon atmosphere was investigated at temperatures between 1100 and 1400°C and the effects of the mechanical activation on chromite structure were analyzed by x-
Kenan Yıldız
doaj   +1 more source

Origin and evolution of Neoproterozoic metaophiolitic mantle rocks from the eastern Desert of Egypt: Implications for tectonic and metamorphic events in the Arabian-Nubian Shield

open access: yesGeologica Acta, 2023
The mantle rocks from Kadaboura and Madara areas represent sections of dismembered ophiolitic complexes developed during the Neoproterozoic in the Eastern Desert of Egypt, which is located in the northwestern corner of the Arabian–Nubian Shield.
Shehata Ali   +2 more
doaj   +1 more source

Selective shear flocculation of chromite from chromite-serpentine mixtures

open access: yes, 1998
In this study, shear flocculation of chromite from mixtures of chromite and serpentine was investigated. The effects of zeta potential, contact angle, stirrer speed, flocculation (stirring) time, settling time and concentration of sodium oleate, Na2SiO3 ...
Akdemir, U, Hicyilmaz, C
core   +1 more source

Chromite and Its Thin Kosmochlor and Cr-Omphacite Cortex in Amphibolite from the Myanmar Jadeite Deposits

open access: yesCrystals
Chromite in the amphibolites of the Myanmar jadeite deposits has not been well studied. Mineralogical studies on chromite and related kosmochlor and Cr-omphacite in the amphibolite of the Myanmar jadeite deposits were conducted.
Yu Zhang, Guanghai Shi, Jiabao Wen
doaj   +1 more source

Carbothermal reduction kinetics of mechanically activated chromite with graphite

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2011
The carbothermal reduction kinetics of mechanically activated chromite with graphite under an argon atmosphere was investigated at temperatures between 1100 and 1400°C.
Kenan Yıldız
doaj   +1 more source

Novel preparation of highly photocatalytically active copper chromite nanostructured material via a simple hydrothermal route. [PDF]

open access: yesPLoS ONE, 2017
Highly photocatalytically active copper chromite nanostructured material were prepared via a novel simple hydrothermal reaction between [Cu(en)2(H2O)2]Cl2 and [Cr(en)3]Cl3.3H2O at low temperature, without adding any pH regulator or external capping agent.
Farshad Beshkar   +3 more
doaj   +1 more source

Investigating the relative adsorption of polymeric depressants on pure minerals [PDF]

open access: yes, 2011
The aim of this study was to investigate the relative adsorption of polymeric depressants on pure minerals. The minerals used were talc, pyroxene, plagioclase, chromite and chalcopyrite and the depressants used were guar gum and carboxymethyl cellulose ...
Mhlanga, Sabatha Sanele
core   +1 more source

Shear flocculation of chromite fines in sodium oleate solutions

open access: yes, 1996
In this study, chromite fines were aggregated by stirring after the particle surfaces were made hydrophobic with sodium oleate. The effects of pH, sodium oleate concentration, stirrer speed and flocculation time were examined.
Akdemir, U, Hicyilmaz, C
core   +1 more source

Rate and Mechanism of Reduction-Dissolution of Chromite in Liquid Slags

open access: yesHigh Temperature Materials and Processes, 2013
The dissolution of chromite from the Bushveld Complex of South Africa in liquid slags was studied in the temperature range 1550° to 1665°C under argon gas. The slag compositions were similar to those of ferrochromium production and stainless steel making.
Demir Orhan, Eric Rauf Hurman
doaj   +1 more source

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